Quick question on case fans

[Gaffer]

I take it the fan side with the most air blowing from it is the side you
have facing outwards at the back of you PC case?

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[UCLAN]

I take it the fan side with the most air blowing from it is the side you
have facing outwards at the back of you PC case?

With "the most air blowing from it" ??

Air should only be blowing out of *one* side. That is the side that
will exhaust the hot air out of your case.